320342201 has 2 divisors, whose sum is σ = 320342202. Its totient is φ = 320342200.

The previous prime is 320342167. The next prime is 320342213. The reversal of 320342201 is 102243023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289816576 + 30525625 = 17024^2 + 5525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320342201 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320342201.

It is not a weakly prime, because it can be changed into another prime (320342501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160171100 + 160171101.

It is an arithmetic number, because the mean of its divisors is an integer number (160171101).

Almost surely, 2^320342201 is an apocalyptic number.

It is an amenable number.

320342201 is a deficient number, since it is larger than the sum of its proper divisors (1).

320342201 is an equidigital number, since it uses as much as digits as its factorization.

320342201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 320342201 is about 17898.1060729900. The cubic root of 320342201 is about 684.2341065951.

Adding to 320342201 its reverse (102243023), we get a palindrome (422585224).

The spelling of 320342201 in words is "three hundred twenty million, three hundred forty-two thousand, two hundred one".